White snakeroot is a common name for several plants and may refer to:

It includes, yes, the weed that killed Lincoln's mother (white snakeroot).

Cows often roamed in woods and underbrush, where the white snakeroot grew.

They often grazed their cattle in frontier areas where white snakeroot grows; it is a member of the daisy family.

During their conversations, the Shawnee told her that the white snakeroot plant caused milk sickness in humans.

"This is a park?" he asked, eyeing the beds of rubber tree plants, goldenrods and white snakeroot within.

It was caused by settlers drinking the milk or eating the meat of cows that had eaten the white snakeroot.

She discovered that white snakeroot, (Ageratina altissima) contains a toxin.

It was caused by the settlers' consuming dairy products or meat of cows that ate the white snakeroot plant, which had the toxin temetrol.

When pastures were scarce or in times of drought, the cattle would graze in woods, the habitat of white snakeroot.

A friend in Manhattan tells me that her cimicifuga, or white snakeroot, a species that blooms in very late summer, is already showing tall spikes.

White snakeroot is toxic and was blamed for killing Abraham Lincoln's mother, who became ill after drinking milk from a cow that had consumed the herb.

Poisonous parts are also found on such popular woodland flowers as jack-in-the-pulpit, white snakeroot (Eupatorium rugosium), bloodroot and baneberry.

White snakeroot contains the toxin tremetol; when the plants are consumed by cattle, the meat and milk become contaminated with the toxin.

However, she was unable to determine the precise cause until she was shown the White Snakeroot by a medicine woman of the Shawnee tribe.

Ageratina aromatica, also known as lesser snakeroot and small-leaved white snakeroot, is a North American species of plants in the sunflower family.

In October 1818, Nancy Hanks Lincoln contracted milk sickness by drinking milk of a cow that had eaten the white snakeroot plant.

It mines the leaves of plants of the Eupatorium genus, commonly called "boneset", as well as related plants of other genera, including white snakeroot.

Ageratina luciae-brauniae is a species of flowering plant in the aster family known by the common names Lucy Braun's snakeroot and rockhouse white snakeroot.

Ageratina altissima, also known as white snakeroot, richweed, white sanicle, or tall boneset, is a poisonous perennial herb in the family Asteraceae, native to eastern and central North America.

Anna Pierce Hobbs Bixby, called Dr. Anna on the frontier, is credited today by the American medical community with having identified white snakeroot as the cause of the illness.

American medical science did not officially identify the cause of milk sickness as the tremetol of the white snakeroot plant until 1928, when advances in biochemistry enabled the analysis of the plant's toxin.

At Cape Chignecto, at least twelve provincially rare plant species have been identified, including White Snakeroot, Creeping Rattlesnake Plantain, and several rare grasses, mosses, and lichens.

Although extremely rare, milk sickness can occur if a person drinks contaminated milk or eats dairy products gathered from a single cow or from a smaller herd that has fed on the white snakeroot plant.

Tragedy struck the family on October 5, 1818, when Nancy Lincoln died of milk sickness, an illness caused by drinking contaminated milk from cows who fed on Ageratina altissima (white snakeroot).

Pilea pumila, known as clearweed, Canadian clearweed, coolwort, or richweed is an annual plant native to most of North America east of the Rockies.

Common names include Canada Horsebalm, Richweed, Hardhack, Heal-All, Horseweed, Ox-Balm and Stone root.

Ageratina altissima, also known as white snakeroot, richweed, white sanicle, or tall boneset, is a poisonous perennial herb in the family Asteraceae, native to eastern and central North America.

There is also a long procession of wonderful eupatoriums for the late border, starting with joe-pye weed (Eupatorium purpureum) in early August and not ending until white sanicle (Eupatorium rugosum) puts in its final word in late October.

Ageratina altissima, also known as white snakeroot, richweed, white sanicle, or tall boneset, is a poisonous perennial herb in the family Asteraceae, native to eastern and central North America.

She discovered that white snakeroot, (Ageratina altissima) contains a toxin.

There are two different varieties Ageratina altissima var.

Eupatorium rugosum (now Ageratina altissima) 'Chocolate' stands in a handsome, upright clump.

Snakeroot (Ageratina altissima)

Eupatorium rugosum (moved to Ageratina altissima)

Tremetone is a chemical compound found in tremetol, a toxin mixture from snakeroot (Ageratina altissima) that causes milk sickness in humans and trembles in livestock.

Tremetol can be found in a number of different species of the Asteraceae family, including snakeroot (Ageratina altissima) and rayless goldenrod (Isocoma pluriflora).

Tragedy struck the family on October 5, 1818, when Nancy Lincoln died of milk sickness, an illness caused by drinking contaminated milk from cows who fed on Ageratina altissima (white snakeroot).

The larvae feed on Eupatorium and Vernonia species, as well as Verbesina virginica, Pinus strobus, Thuja occidentalis, Pluchea odorata and Ageratina altissima var.

There are a great many species, two of which are in the park planting: sweet joe-pye weed, Eupatorium purpureum, and thoroughwort (a k a white snakeroot), which was E. rugosum until recently and is now Ageratina altissima.